Paul Stoliker, 41, was arrested on suspicion of robbing a U.S. Bank at 136 Second Ave. at about 4:40 p.m. Tuesday and a Chase bank at 3590 S. El Camino Real about a half hour later, San Mateo police said.

The robbery at the U.S. Bank began when a suspect matching Stoliker's description approached a bank teller's window. But instead of asking for cash, he asked whether there was an urgent medical care center near the bank, according to the affidavit filed Wednesday in U.S. District Court by FBI Special Agent Adrienne Sparrow.

The suspect leaned closer to the teller window, and the teller saw a note that said, "I'm unarmed." She also saw the words "reserve" and "20s - 50s," the affidavit said.

The teller opened the top drawer per the suspect's instruction and gave him $1,330 after he repeatedly said, "Give me that." After taking the money, he told the teller, "I'm sorry I had to do this to you," and left, the affidavit said.

High-quality photos were taken of the robbery suspect around the time of his first alleged robbery. Police described him as a tall, white man wearing a baseball hat, glasses and a light-colored sweater.

At about 5:15 p.m. Tuesday, a man matching Stoliker's description was spotted entering the Chase bank on South El Camino Real, police said.

The suspect approached a bank teller window and, instead of asking for cash, he again asked if the teller knew the closest place to receive medical care. He told the teller that he did not want to go to a hospital because it was too expensive, according to the affidavit.

After getting directions to a nearby clinic, the suspect unfolded a piece of paper on the counter for the teller to read. The paper said something to the effect of, "This is what it looks like," the affidavit said.

The teller also saw the words "reverse" and "only $100s, $50s and $20s." The teller then gave the suspect $3,230 from two drawers, the affidavit said.

Shortly following the robberies, San Mateo police began checking with nearby medical centers and quickly got a report that a man matching the suspect's description had shown up at Immediate Care, a walk-in clinic located at 60 N. El Camino Real.

Police detained Stoliker at his vehicle and searched it. They found a hat with a UCLA insignia, a bank robbery demand note, square-framed glasses, and $2,130 in cash, the affidavit said.